Not sure if this applies to audio drivers, but Microsoft is no longer signing drivers for Windows 7. So in order to get new graphics card drivers for example you need to activate driver test mode (which will come with its own problems, so I don't recommend it). But there might be a difference because driver signing might be required for graphics drivers but not for audio drivers.

Still no luck with with Windows 7 drivers (driver_madiface_win_09827.zip). Windows gives error 577 in Device Manager and says drivers and some other components are not signed. Could you check if:
- signtool passes verification check on madi sys files
- you're able to net start madi.. service without errors
?
I'd greatly appreciate it..

0.9827 works for us and others (see the other thread). That means both your Windows 7 systems are not on latest state and miss the latest certificates/updates. Obviously we can not know which driver version might still work for you, so you have to get the updates or try the older drivers. Simply change the number in the url and you will find them.